Dispensing – With cleaning means
Patent
1975-06-27
1976-04-27
Reeves, Robert B.
Dispensing
With cleaning means
137331, 222508, B22D 4110
Patent
active
039529223
ABSTRACT:
In accordance with a preferred embodiment of this invention, a precessing bottom pour stopper is used to accurately and precisely control the flow of molten metal through the tap hole which is located in the bottom of a metallurgical vessel. The precessional movement of the stopper, as it moves into and/or out of sealing engagement with the tap hole, removes any debris which may be lodged between the sealing surfaces and thereby ensures a tight seal over a prolonged period of operation.
REFERENCES:
patent: 3643680 (1972-02-01), Hall et al.
Akeel A. Hadi K.
Ditto Edwin D.
General Motors Corporation
Pulley Jack I.
Reeves Robert B.
Scherbel David A.
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